\begin{tabular}{lcccccc} \hline
 & (1) & (2) & (3) & (4) & (5) & (6) \\
VARIABLES & ASC & ASC & ASC & ASC & ASC & ASC \\ \hline
 &  &  &  &  &  &  \\
ln $\Delta$ IPW (US, 91-07) & 0.993*** &  & 0.988*** &  & 0.981*** &  \\
 & (0.027) &  & (0.027) &  & (0.026) &  \\
ln $\Delta$ IPW (91-07) &  & 0.081*** &  & 0.069*** &  & 0.067*** \\
 &  & (0.026) &  & (0.023) &  & (0.024) \\
Female &  &  & 0.002 & 0.027 & 0.006 & 0.027 \\
 &  &  & (0.010) & (0.029) & (0.010) & (0.028) \\
Age &  &  & -0.000 & 0.005*** & -0.000 & 0.005*** \\
 &  &  & (0.000) & (0.001) & (0.000) & (0.001) \\
Higher Cert. &  &  & 0.003 & -0.106*** & 0.003 & -0.106*** \\
 &  &  & (0.015) & (0.039) & (0.015) & (0.039) \\
University &  &  & -0.016 & -0.235*** & -0.010 & -0.233*** \\
 &  &  & (0.012) & (0.032) & (0.012) & (0.031) \\
Married &  &  & 0.005 & 0.104*** & 0.004 & 0.103*** \\
 &  &  & (0.010) & (0.023) & (0.010) & (0.024) \\
\% non-UK born &  &  &  &  & -0.005*** & -0.001 \\
 &  &  &  &  & (0.001) & (0.001) \\
$\Delta$ \% non-UK born &  &  &  &  & 0.001 & 0.002 \\
 &  &  &  &  & (0.001) & (0.002) \\
 &  &  &  &  &  &  \\
Observations & 1,856 & 1,856 & 1,793 & 1,793 & 1,793 & 1,793 \\
R-squared & 0.884 & 0.009 & 0.885 & 0.129 & 0.889 & 0.130 \\
 Weak ID F stat & 1328 & 1328 & 1334 & 1334 & 1423 & 1423 \\ \hline
\multicolumn{7}{c}{ Robust standard errors in parentheses} \\
\multicolumn{7}{c}{ *** p$<$0.01, ** p$<$0.05, * p$<$0.1} \\
\end{tabular}
